Hertel 79889556 Chucking Reamer 0.141 in Solid Carbide

Product Description

The HERTEL 79889556 is a solid carbide chucking reamer designed for precision hole finishing in machine tool applications. With a reamer diameter of 0.141 inches and a tight tolerance of 0.0000 to 0.0002 inches, this tool produces accurate, repeatable bore dimensions in a single pass. The straight flute geometry and right-hand cutting direction make it well-suited for through-hole reaming in CNC machining centers, drill presses, and manual lathes. At 2.5 inches overall length with a 0.75-inch flute length, it is compact enough for short-reach applications. Machinists and toolroom technicians are the primary users of this reamer in production and job-shop environments.

This chucking reamer is intended for use in machine tool setups where close-tolerance hole finishing is required. The straight cylindrical shank seats securely in standard drill chucks, collet chucks, and reamer holders. Its solid carbide construction makes it appropriate for reaming hardened materials, cast iron, aluminum, and non-ferrous alloys where high wear resistance and edge retention are critical. The bright, uncoated finish is suitable for use with cutting fluids across a range of workpiece materials. Typical applications include fixture work, jig building, and production reaming of precision-fit holes.

Key Features

• Solid carbide construction provides high wear resistance and edge retention in demanding materials
• Reamer diameter of 0.141 inches with tolerance of 0.0000 to 0.0002 inches for precise bore finishing
• 4-flute straight flute design ensures smooth cutting action and consistent surface finish
• Straight cylindrical shank for compatibility with standard chucks and collet holders
• Right-hand cutting direction with bright uncoated finish suitable for use with cutting fluids
• Compact 2.5-inch OAL with 0.75-inch flute length for short-reach reaming applications

Compatibility

Designed as an OEM-style machine reamer for use in standard drill chucks, collet chucks, and reamer holders accepting straight cylindrical shanks across CNC and manual machine tool setups.

Installation Notes

Installation and use of this reamer should be performed by a qualified machinist familiar with machine tool operation and cutting tool setup. Secure the shank fully in the chuck or collet and verify runout before cutting. Always apply an appropriate cutting fluid for the workpiece material to extend tool life and improve hole quality. Do not use this reamer for hand reaming operations; it is designed exclusively for machine-driven applications.